Process of marking paper



w. J. HUGHES v PROCESS OF MARKING PAPER Filed June 16. 1922 avwemto'c WJonse Hughes 351g M5 @lbtome 5 Patented @ct'. 2, 124.

s RM.

WILLIAM JONSE HUGHES, OF BROOKLYN, NEW YORK.

EBOGESS OF i'i. r

KING PAPER.

Application filed. June 16, 1922. Serial No. 568,839.

To all whom it concern:

Be it own t at 1, WILLIAM JoNsn HUoHEs, a citizen of the United States, and

a resident of ,New York city, borough of 'Brookl county of Kings and State of New Yzi fk,

have invented an Improvement in Processes of. Marking Paper, of which the following is a specification.

It is the object of my invention to provide a'method of marking paper, such as carbon or manifolding paper, which is superior to the methods now in practice.

There have been various processes and apparatus for accomplishing such marking, but] ll of them are more or less unsatisfactory. For example, after the coating of transfer material, commonly known in the trade as carbon ink, has been applied to the paper, dies have been pressed against the coated surface to render the areas so compressed smoother than the remainder of the surface, thus giving thenia bright finish in contrast -with the .unstamped areas. Again heated dies have been placed in contact with the coated surface of the paper to effect a change therein by means of high .jtemperature and so to bring out a perceptible contrast between the areas so treated and the rest of the sheet, whereby the impression ,of the heated dies becomes visible.

My method contemplates treating or conditioning apro-determined area, or predetermined areas, of the paper prior to the application of the transfer material or carbon ink thereto, or prior to the material penetration of the transfer material or carbon ink into the paper, so that the area or areas which have been thus previously conditioned are pervious to the transfer material or ink in a different degree from the remaining surface of the aper, with the result that after the trans er material has been applied, the conditioned areas will become apparent in contrast with the rest of the sheet.

I have found that ordinary. printers ink acts to resist the penetration of transfer material or carbon ink, so that'the desired marking of the sheet may be accomplishedin accordance with my method merely by printing the desired name or mark upon the uncoated. sheet, and then covering the sheet and the printing with the usual layer of carbon ink applied upon the same side as, and over, the printing. Upon reversing the sheet, the mark or name will have be- ,area of the tissue to a less come apparent, for carbon ink, as is well known in the art, permeates the paper to a certain degree and changes the color tone of the back of the sheet; but areas which have been covered or conditioned, as by previous printing, are less susceptible to carbon ink penetration than unprinted areas, with the result that a mark or name printed on the front side of the sheet appears upon the back in a lighter color tone than the surrounding areas after the carbon ink has been applied to the front of the sheet.

The accompanying drawings illustrate the 7 to condition those porhow the carbon ink penetrates the unprinted degree than the printed area, with the result that by this process the identifying made to show through on the back side of the sheet, as completely illustrated in Fi re 5..

hile I have described one specific method of carrying out my process, do not wish to be limited thereby, for it is obvious that other materials than printers ink might be used as a conditioning material, and equally obvious that this conditioning material might be applied to the back side of the sheet," opposite the coating of carbon-ink as well as to the front side of the sheet, and with equal effectiveness, provided the conditioning material possessed the quality of rendering the paper more or less pervious than the surrounding paper, so that the application of the. carbon ink resulted in showing the desired mark or name by a diflerence in the efieetive penetration of the carbon ink in difierent areas of the sheet.

I claim:

1. The process of marking carbon paper word or mark 15 which consists of applying the desired marking in printers ink to the surface of the paper before the coating of carbon-ink is applied and then applying the carbon-ink over the printed marking and upon the same side of the paper.

2. The process of marking carbon paper which consists of applying the desired mark in ink-resisting material to the surface of the paper before the coating of carbon-ink is applied and then applying the carbon-ink over the mark and upon the same side of the paper.

3. The process of marking carbon paper which consists of applying the desired identification in ink-penetration-resisting ma.- terial to the surface of the paper before the coating of carbon-ink is applied and then applying the carbon-ink over the identification and upon the same side of the paper.

4. The process of marking carbon paper which consists of applying the desired marking in ink-penetratlon-resisting material to the surface of the paper before the coating of carbon-ink is applied and then applying thereover the carbon ink.

5. The process of marking carbon paper which consists of treating a predetermined area of the paper to render it less pervious t0 carbon-ink than the circumj acent area and then applying carbon-ink over both these areas.

6. The process of marking inanifolding sheets which consists of treating a predetermined area of the sheet to render it less pervious to the impression-coating-material than the surrounding area and then applyin the said coating material over said area.

%. The process of marking manifolding sheets which consists of treating a predetermined area of the sheet to render it pervious to the impression-coating-material to a different degree than the surrounding area and applying to said areas the impression-coating-material.

8. The process of marking manifolding sheets which consists of treating a portion of the sheet to alter its susceptibility to impression-coating-niaterial, and coating the sheet with impression-coating-material.

In testimony whereof, I have signed my name to this specification.

W. Jones nnenns.

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